I have locked this topic, as it has run it's course.
The discussion about two people who travelled on trains wearing uniforms was removed.
Mr 'B' admits he was wrong to do what he did, and regrets the incident, however he was given the uniform and was not using it in order to gain any advantage. However, the subject has been referred to MML and it up to them what they do.
Mr 'K' does indeed appear on a training video removing a uniform from a locker at Euston without permission, he was arrested but was not charged as this was over a year ago (he was 15 then and is 17 now) and as he was under 16 it was deemed "not in the public interest" to prosecute.
Both culprits have been delt with - or are being delt with - so there is no need for further comment here. I am sure no-one on here condones impersonating railway staff, so the matter should now be closed!